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Oxford English Dictionary (1989)

Oxford English Dictionary (1989). factoid, n. and a. A. n. Something that becomes accepted as a fact, although it is not (or may not be) true; spec. an assumption or speculation reported and repeated so often that it is popularly considered true; a simulated or imagined fact.

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Oxford English Dictionary (1989)

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  1. Oxford English Dictionary (1989) factoid, n. and a. A.n. Something that becomes accepted as a fact, although it is not (or may not be) true; spec. an assumption or speculation reported and repeated so often that it is popularly considered true; a simulated or imagined fact. B.adj. Of or having the character of a factoid, quasi-factual; spec. designating writing (esp. journalism) which contains a mixture of fact and supposition or invention presented as accepted fact.

  2. Webclopedia • Paper “Toward Semantics-Based Answer Pinpointing” – Hovy et. al. 2001 • Information Sciences Institute, University of Southern California, Los Angeles • Window-based pinpointing of answer candidates has limitations • Two methods for improvement • Syntactic-semantic question analysis • QA pattern matching

  3. WebclopediaQA Typology • Attempt to represent the users intentions • Hierarchy of QA types • 17,384 questions from answers.com • Distilled into 72 types

  4. WebclopediaQA Typology • Each node annotated with question and answer templates • Manually created (?) • Manually selected for nodes • Future: Learning QA patterns automatically • Question examples and question template Who was President of Turkmenistan in 1994? Who is the composer of Eugene Onegin? Who is the chairman of GE? who be <role> of <entity> • Answer templates and actual answers <entity>’s <role> <person> ...Turkmenistan’s President Saparmurad Niyazov <subject>|<psv object> of related role-verb ...Chairman John Welch said ...GE's

  5. WebclopediaParsing • CONTEX • Deterministic machine-learning based grammar learner/parser • Originally built for MT • Difficulties in adoption to question sentences • Trained on 2048 Penn Treebank sentences • Additional question sentences • Creates a semantically annotated syntax parse tree (?) • Used for parsing questions and answers • QTargets had to be expanded for answers • Arguments can be extracted

  6. Webclopedia • Matching • Match QA patterns in the parse tree, • Match Qtargets and Qwords in the parse tree, • Match over the answer text using a word window • Overall results • QA patterns too specific • Too sensitive to variations in phrasing • CONTEX is able to some degree to identify • The semantic type of the desired answer • The corresponding types in candidate answers

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